๋ชปํ•ด๋„ 20% ํ• ์ธ์€ ๋จน์ด๊ณ  ์‚ฌ์•ผ ์ •๊ฐ€์ž„
Qc ์ข†๋ฐ•๊ณ  ๊ฐ€๊ฒฉ์ด ๋งค๋ฒˆ ์ƒ์‹์„ ๊นจ๊ณ  ๋‚˜์˜ด